Spring-hinge.



Patented Nov. 12,1912.

4 jo 7; ,2/ 6 T m Java/7727p J. M. ZUK.

SPRING HINGE.

APPLICATION FILED APR. 5. 1912.

15 L ZMWESSEE E 22 2, $AK QM\*\L 15 UNITED STAT;] I ENT OFFICE.

JOSEPH M. ZUK, OF NEW BRITAIN, CONNECTICUT.

e To all whom it may concern: Be it known that I, Josnrn M. Zen, a "citizen of Russia, residing at New Britain. in the county of Hartford and State of Conneeticut, have invented eertain'new and 'jwhich the following is a specification.

l\l "invention relates to improvements in spring hinges and the object of ni v improveinent is simplicity and economy in construc tion, and convenience and etliciency in use. I In the accompanying drawings:- Fi; rure d l'is'a side elevation of in improved spring lii'nge. 'Fig. 2 is a plan view of the same. Fig. 3 is a sectional view on an enlarged- 'scale, on the line .r a" f Fig. "i. Fig. 4 is a s-a"plan view of the same. Fig. (3 is a side elevation oft-he slide screw. Fig. T is a top view of the same. Fig. 8 is a bottom view ofthe same. I? with the top nut removed. Fig. 10 is a plan view of the slide nut. Fig. 11 is a se tional view olilhe same on the line y 3/ tit-Fig. 10. double hinge embodying nrv invention. on 1 areduced scale. Fig. 13 is a side elevation of the same.

y spring hinge comprises a left leaf "nectcd, by a pivotal connection and provided with spring means for being closed relatively one to the other and means ot'= adjustment of the spring. The leaf incinber's B and C comprise each a leaf proper 15 of sheet metal oi the usual plate-like form and provided with screw holes to receive supporting screws. The left leaf memher I? comprises the leaf proper 15 and overhanging the lateral edge of the said leaf proper at the upper and lower corners on one. side are provided end knuckle portions 16 in the form of a flat plate turned at right angles to the axis. and the said knuckle portions [6 have each an axial hole 17 suitable to receive and a fit for the body portions of the shaft ,1). The hole 17 that receivestl'ie lower shaft portion 18 is larger useful Improvements in Spring-Hinges. of

Fig". 9 is a view similar to Fig. i

ide-elevation ot the adjusting sleeve. I Fig. 5

SPRING-HINGE.

Specification of Letters Patent. Patented Nov. 12, 1912,

Application filed Apf'il 5, 1912. Serial No. 688,692. i I

tion 16 and the body 20 and the bottom end knuckle F comprises the end knuckle portion 16 and the body 21.

The body 20 comprises a truncated coni- .cal exterior lateral wall, has the extreme upper surface 22 plane suitable for a bearing surface, is provided on the upper end with a channel 33 that is a fit for the end knuckle portion 16 and is provided with an axial hole 24 in registration with the hole 17 in the upper end portion 16 and which likewise a tit tor the upper portion 19 of the shaft l The lower side of the body 20 is provided on the outer portion with a plane raceway 25. forming the upper hearing for a set of balls 26 of the upper ball bearing: (l. Inward from the raceway there is an axial extension 27 in the form of a neck having a cylindrical outer periphery.

'.\n axial chamber '23 extends from the lower end of the neck 27 upwardli into the body portion of the body 20 and has a hex- Fig. 19 is a plan view of a member B and a right leaf member C conthan the hole 17 that receives the upper structures, comprising each the out knuckle shalt port-ion l9 to correspond to the ditteragonal Formation tor the lateral walls. A bridge or we '3 separates the channel 23 from the chamber 35 and has the hole "24: already referred to which constitutes the earing for the upper end ill of the sliatt D.

The lower bodv 2i has a hannel 2 receive the bottom end knuckle portion lti. a bearing end '32. an annular racewav 30, which preferably is grooved to receive the balls '26 ol the lower ball earing ll. hasan axial extension 31 extending upwardly above the racewav 30 and having a evlindrical outer periphery. and the earing hole 32 extends through the. bod) p rtion of the body 21 and neck 3i.

.\s shown the end knuckle portions lti are wedge shaped and the channels '23 have corresponding; convergin; walls. and the relative dinwnsions are preferably such that there is an appreciable draw so that pressure will be required to bring the holes 17 in registration with the holes 24. and 532- and permit the insertion of the shaft l). whereb a firm union of the leaf 15 and the bodies "20 and Qt will be elte ted.

provided comprising an upper end member T for the upper ball bearing G and a lower portions to and a knucklebody preferably in l'llt. -itoi-iiiw-ot a casting. The top end knuckle E comprises the end knuckle poreiid member J for the bottom ball bearing TI. The upper end member I comprises acvlindrical member having an annular head 33 at the upper end having the upper surface provided with a raceway suitable for t receiving the balls 25 and on the lower side an annular shoulder 34 and a neck 35 exan axial bore that is a fit for the neck 3:11;

of the body portion 21.

The right lea. member C, comprises the leaf and an integral interu iediate knuckle 41 formed cylindrically and provided with an axial chamber 42, and having the upper and lower ends threaded to 'receive the end members I and J. The upper portion'cf the chau'zber 42 is bridged by the slide nut K. which is preferably located in abutment with the lower end of the member I and is hel ainst rotation and fixed in position b tjtlie radial screw L. The slide nut K comprises an. annular nut that fits the chamber 1nd #is provided axially with an interior! .hrea l 43 having a steep pitch or incline and is, normally held rigidly in position in the said chamber.

The slide. screw M comprises an elongated cylindrical structure having at the upper end ahead 44 that is hexagonal in upper body Qii'and below the said head 44 is provideijl. on the exterior with a screw thread 45 the t tits the steep pitch thread 43 of the slide nut K, and is provided with an axial here it) whicl'r may be threaded or the threaded portion may be confined to approxinnit ely the lower hall, 47'as shown.

The adjusting sleeve N is an elongated 'cylindrical structure, having the exterior hole 4.9 that. is square in crossscction.

threaded portion 47 of the slide screw M,

and on the interior is pierced by an axial Nor mallv the/h wer end of the adjusting member NLex ds below the lower end of slide screw M int: washer O.

V .N and it) opc'r'atively receive the upper end The bridging washer 0 fits loosely in the chamber 42, has a hole to fit the shaft D, ahd suitable for bearing against the ex trcme lower end of the adjust-ingmemher of the spring? The springllis a coil spring, surrounding the shaft D, ,suitable for being housed in the chamher'42 between the washer O and the loweccup member J.

The shaft I) has the extreme ends threaded and has the lower body porti n 18 of relatively large diameter, the upper body portion 19 of smaller diameter, the said upper and lower body porti ns 18 and 19 being cylindrical and. the intermediate body suitably to abut against a bridg" and a sliding fit for the hexagonal latera't; walls of the axial chamber 28 in the T' screw threaded to correspond ,to the screw portion 49 adjacent the adjusting member Y is square in cross-section and a sliding fit for the square hole 49 in the said adjusting member N.

End nuts Q are screwed onto the ends of the shaft D and have the lower surfaces in engagement ith the hearing urtaccs 22, and serve to position the shaft 1) positively relativclv to the lcal' members ll and C. A pin secures the shaft l) to the lower nut Q.

As described. the left lcat member conipriscs the leaf 1:") and the composite cnd knuckles and the right lca't mcmber compises the leaf 13 and the composite inter mediate knuckle compri ing the intermediate knuckle member 41 and the upper and lower members I and J. and they are opcr atively spaced by the balls 27 of the ball bearings G and ll, and the parts mcmioned are held positively in operative the shaft D.

The spring I is under compression and tends to force the. slide screw upwardly in the slide nut K and movement responsive to such tendency operates to turn the slide screw relatively to the slide nut and through the operation of the head 44 engaged with the extension or neck 28 operates to turn the leaf members it and C relatively one to the other.

Turning the adjusting member N relatively to the slide screw M effects longitudinal movement of the adjusting member N and thereby'changes the compression of the spring P and effects the adjustment thereof and such change in adjustment is produced by turning the shaft D by the engagement of the square intermediate portion 49 thereof with the square hole 48 of the adjustin member N. Accordingly, as described, a justment of tension of the spring and correspondingly of the setting of hinge A is efl'ected by a rotative movement of the shaft D.

The two way hinge shown in Figs. 12 and 13 comprises end eaves 15, and an intermediate leaf 50 connected by a pair of spring hinge connections R each of which comprises the features of spring operation and adjacent parts shown and ascribed in the single hinge A.

I claim as m invention 1. A spring inge comprising a pair of leaf members having intermeshing members comprising a pair of end members and an intermediate member, spring operative mechanism comprising a slide not secured in the intd'mediate member and provided with a thread, a slide screw having a thread, a spring hearing against one end of the said screw, and the other end of the said screw held against rotation in one of the said and members, and having free longitudinal movement therein.

2. A spring hinge comprising a pair of position by leaf members having intermeshing end members and an 7 intermediate -member, spring operative mechanism comprising a slide nut secured in the intermediate mem- 'ber and provided with a thread, a. slide screw having a thread; a spring bearing agalnst one end of the stud screw, the other end of the said screw held agamst rotation in one of the said end members and provided With means permitting free longitudinal movement in the said end member, and means for adjustment of the tension of the said spring.

3. A s rin hin e com risin a leaf memp n z: as

her having end knuckles and a second leaf member having an intermediate knuckle, a slide nut fixed in the said intermediate knuckle and a spring housed therein, one of the said end knuckles provided with an axial chamber Lhaving polygonal cross-section. a slide screw having a head fitting the said chamber and a body portion having a'screiv thread operatively engaged with the said tion, a slide screw having a head fitting the said chamber and a body portion having a screw thread operatively engaged with the said slide nut, and an adjusting member intermediate the said slide screw and spring and means for adjusting the relative position of the said slide screw and adjusting member. 9

In a spring hinge comprising leaf members, a spring and a shaft, means of adjustment of the said spring operative by a rotative movement of the said shaft and the said shaft held against axial movement relatively to the said leaf members and the said spring operative as a 'eompression spring. I

6. In a hinge comprising a pair of leaf members having inter-meshing knuckles, a spring, a slide nut fixed in the intcrl'nediate knuckle. a slide screw having threaded engagement with the said nut and a polygonal head, one of the end knuckles provided with a chamber fitting the said head, an adjusting member having "screw thread engage ment with the said screw and provided with a square hole, a shaft having a square p01- tion fitting the said hole.

JOSEPH M. ZUK;

\Vitnesses SHEFFIELD H. CLARKE, Room: Eowaans. 

